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通过对常用的两种齿轮一销轨式无链牵引机构性能分析，提出了渐开线—摆线复合齿轮这一新的无技牵引机构．研究表明，其接触和弯曲强度较普通摆线齿轮均有所提高。该复合齿轮用于采煤机无链牵引机构将具有广泛的应用前景。
Based on the performance analysis of two commonly used gear-chainless chain traction mechanisms, an involute-cycloidal composite gear is proposed. Research shows that the contact and bending strength is higher than ordinary cycloidal gear. The compound gear for shearer chainless traction mechanism will have a wide range of applications.